The lilting juggernaut that is Celtic Woman returns to San Antonio Sunday as part of a four-month tour on the heels of its sold-out Christmas tour.

It's also after two 2012 CDs that debuted at No. 1 on Billboard's World Music charts, which is why Billboard named it the top world music artist. Not only does the group remain a fixture on PBS specials, but recently the women were guests on the CBS soap “The Bold and the Beautiful.” Talk about multiple platforms.

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“It's been very liberating. At the start it felt very different from what I've been used to, but it's been fantastic, and I think connects with the fans. No matter where we go, it's the same with the fans. It's overwhelmingly fantastic.”

The Majestic concert is part of a world tour.

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“It's really a celebration of all things new and older about Celtic Woman,” Lambe says. “It spans the lifeline of the last nine or 10 years of the show and has some of the material from our 'Believe' tour last year as well. So it's sort of a greatest hits tour really, and it's fantastic because I get to perform some of the songs I've known about and been a huge fan (of) from before I started.”

Calling the show a feast for the eyes and ears, Lambe says, “We always do 'Danny Boy,' which is a beautiful Irish classic no matter what show we're doing. We also have a beautiful song at the start of the show called 'Awakening.' Chloe has her solo 'Ave Maria,' Susan is doing 'Caledonia' and 'The Voice' and of course Máiréad has her fiddle solos as well, so it's got something for everybody in it.”

Lambe's solos, she says, are “'Dulaman,' which is the Gaelic word for seaweed, and that's a little fun song at the very start of the show. I also do a beautiful American anthem, 'Bridge Over Troubled Water.' I have a huge connection with that song and absolutely adore singing that every night. It's very special, just myself and a piano, very acoustic and very raw. It's been lovely.”

Lambe calls it a show for every generation, one where grandparents come with grandkids.

“I think everybody gets something from it, and that's really a testament to the span in music style that the show contains,” she says. “The costumes and incredibly talented cast and crew mixed with the music makes for a very unique and beautiful blend and it's very special.

“I think that's the reason why it's had such longevity in America especially. Next year will be the 10-year anniversary of the show so it's a real privilege to be part of it.”